Screen printing squeegee

Screen Printing Ink is applied to part through a finely woven screen. Screen is masked in areas that won t be painted. Economical means for decorating flat or curved surfaces, especially in relatively short runs. Screens, fixture, squeegee conveyorized press setup (for any kind of volume). Dryers Manual screen printing possible, for very low-volume items... 

The screen printing process uses a rubber squeegee to force ink through a tightly stretched, finely woven mesh onto various substrates. The basic concept has been refined to the point where large semi- and fully automatic lines are relatively common. Typical products are display printing, industrial and container printing, and printed circuit production. ... 

Place ink over the holes in the mesh on the screen again and print on the next substrate. When enzyme ink has been printed on all substrates, clean the screen and squeegee with water. 

Transfer-printing The method consists in screen-printing an ink pattern (see Section 5.4.3 wet process ) onto a water-soluble paper substrate. A temporary carrier overcoat layer (e.g. an acrylic) is then printed over the pattern. The ceramic layer and overcoat are removed from the water-soluble paper and squeegeed on to the chosen substrate. The substrate and transferred layer are then co-fired, the carrier overcoat burning away. 

Fig 1 Scheme of the screen-printed process a typical thick-film screen consists of a finely woven mesh of stainless steel, nylon or polyester, mounted under tension on a metal frame, normally aluminium. The screen defines the pattern of the printed film and also determines the amount of paste which is deposited. The mesh is coated with a ultraviolet sensitive emulsion (usually a polyvinyl acetate or polyvinyl alcohol sensitized with a dichromate solution) onto which the circuit pattern can be formed photographically. The ink is placed at one side of the screen and a squeegee crosses the screen under pressure, thereby bringing it into contact with the substrate and also forcing the ink through the open areas of the mesh. The required circuit pattern is thus left on the substrate... 

Fig. 1. Diagram to show preparation of screen-printed electrodes. (A) Polyester card support, (B) screen-stencil, (C) ink suspension, and (D) squeegee (this is a variation after Fig. 3 in ref. 7).

Microcapsules (according to Section 2.4.6) were coated onto various textiles using the semi-automated screen printing machine RokuPrint SD05, with 4 bar pressure applied onto the squeegee. Printed samples were cured at 140 °C for 6 min. 

Screens, fixture, squeegee, conveyorized press setup (for any kind of voliune). Dryers. Manual screen printing possible, for very low-volume items. 

Another important use of solvents is in screen-printing operations. These are used for machine, screen, and squeegee cleaning. In one case study, GC/MS showed the presence of the VOCs shown in Table 7.8 [24]. 

Squeegee A soft, flexible blade or roller used in wiping operations, particularly in screen printing and lay-up molding. 

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